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He said: "What about the Glasgow Celtic? The only f****** team worth talking about!”

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McGregor had posted earlier in the day an image of him being put through his paces at his Dublin training base earlier in the day.

He shared an image from his SBG on Instagram to say: "Working on the "Blitz" tonight at @sbgireland. An underrated technique until it goes through you at 100mile an hour. Shout out Celtic football club."

After being bombarded by Celtic fans asking if he can play in defence, McGregor replied on Twitter to say: "Fresh and solid. You bet your b***** I can play centre half hahah"